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- W3036077922 abstract "Abstract The use of modified polyurethane foam adsorbents for mercury adsorption applications can reduce the impact of mercury pollution. This study aims to study the characteristics of adsorbents made from castor oil, MDI (Methylene diphenyl diisocyanate), glycerol, distilled water and modified by the addition of zeolite and bentonite. Polyurethane foam which has optimum performance is further characterized to determine physical and chemical properties, including: functional groups (FTIR), morphology (SEM) and area (BET). The results of FTIR Characterization showed that in polyurethane foams without modification there was a C = O group which is a typical group in the polyurethane group shown in wavenumber (1654-1516 cm −1 , 1680-1514 cm −1 , and 1593-1516 cm −1 ) Whereas in zeolite modified polyurethane foam there is a C = CH group with a wavenumber of 3008 cm −1 which is a typical group for zeolite whereas in bentonite there is a C = CH group with a wavenumber of 3007 cm −1 which is a typical group for bentonite. The results of SEM characterization show that zeolite modified polyurethane foam has a smooth and flat structure with small pores and polyurethane foam with bentonite has irregular or irregular particle shape. The average BET area obtained in the PUF modification is 1.3778 m 2 g −1 . Whereas for the smallest BET area obtained at synthetic PUF 19.1 gr + Zeolite 40% for 0.773 m 2 g −1 , the area is influenced by the comparison of composition from polyurethane foam synthesis." @default.
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- W3036077922 date "2020-05-01" @default.
- W3036077922 modified "2023-10-11" @default.
- W3036077922 title "Characterization of Modified Polyurethane Foam Adsorbents for Mercury Adsorption Applications" @default.
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- W3036077922 doi "https://doi.org/10.1088/1757-899x/845/1/012002" @default.
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